AK7782 AKM [Asahi Kasei Microsystems], AK7782 Datasheet - Page 18

• Manufacturer Part Number: AK7782
• Description: Dual Audio DSP with 24bit 5ch ADC & SRC
• Manufacturer: AKM [Asahi Kasei Microsystems]

[#h indicates hexadecimal numbers. (#=0, 1, 2 ~ 9, A, B, C, D, E, F)]
1) System Clock
MS1337-E-00-PB
(Ta=-40°C ~85°C, AVDD=DVDD=3.0~3.6V, DVDD18=1.7~1.9V)
(Ta=-40°C~85°C, AVDD=DVDD=3.0~3.6V, DVDD18=1.7~1.9V)
Note 30. LRCLK frequency and sampling rate (fs) should be the same.
Note 31. BITCLKI is a source of master clock. It should be 64 times fs correctly.
Note 30. LRCLK frequency and sampling rate (fs) should be the same.
Note 32. The maximum value 128fs is achieved when fs ≤ 48kHz.
XTI
a) with a Crystal Oscillator
b) with an External Clock
LRCLKI Frequency
BITCLKI Frequency
a) CKM[2:0]=2h, 3h
b) CKM[2:0]=4h, 5h
SRCLRCK Frequency
SRCBICK Frequency
CKM[2:0] 0h, 1h, 2h, 3h
CKM[2:0]=0h, 2h
CKM[2:0]=1h, 3h
CKM[2:0]=0h, 2h
CKM[2:0]=1h, 3h
High Level Width
CKM[2:0]=2h, 3h
High Level Width
Low Level Width
Low Level Width
CKM[2:0]=4h
CKM[2:0]=5h
Parameter
Duty Cycle
Duty Cycle
Duty Cycle
Parameter
Duty Cycle
(Note
(Note
(Note
(Note
SWITCHING CHARACTERISTICS
32)
31)
30)
30)
Symbol
fXTI
fXTI
fXTI
fXTI
fs
tBCLKH
tBCLKL
fBCLK
fBCLK
fBCLK
fBCLK
fs
tBCLKH
tBCLKL
fBCLK
Symbol
- 18-
11.0
16.5
7.35
0.23
2.75
7.35
0.23
min
min
5.5
40
64
64
40
40
64
64
32
40
11.2896
16.9344
12.288
18.432
typ
typ
50
48
64
50
64
50
48
50
max
128
max
6.2
12.4
18.6
96
60
6.2
3.1
6.2
60
96
60
60
[AK7782]
MHz
MHz
MHz
Unit
2011/11
kHz
MHz
MHz
MHz
MHz
MHz
Unit
kHz
ns
ns
%
fs
ns
ns
%
%
%
fs
fs